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<h2><span class="refentrytitle"><a name="glib-String-Utility-Functions.top_of_page"></a>String Utility Functions</span></h2>
<p>String Utility Functions — various string-related functions</p>
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<a name="glib-String-Utility-Functions.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;glib.h&gt;
#include &lt;glib/gprintf.h&gt;

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strdup" title="g_strdup ()">g_strdup</a>                            (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strndup" title="g_strndup ()">g_strndup</a>                           (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> n</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> **            <a class="link" href="glib-String-Utility-Functions.html#g-strdupv" title="g_strdupv ()">g_strdupv</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strnfill" title="g_strnfill ()">g_strnfill</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> length</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> fill_char</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-stpcpy" title="g_stpcpy ()">g_stpcpy</a>                            (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *dest</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *src</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strstr-len" title="g_strstr_len ()">g_strstr_len</a>                        (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *haystack</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> haystack_len</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *needle</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strrstr" title="g_strrstr ()">g_strrstr</a>                           (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *haystack</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *needle</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strrstr-len" title="g_strrstr_len ()">g_strrstr_len</a>                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *haystack</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> haystack_len</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *needle</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-str-has-prefix" title="g_str_has_prefix ()">g_str_has_prefix</a>                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *prefix</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-str-has-suffix" title="g_str_has_suffix ()">g_str_has_suffix</a>                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *suffix</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="glib-String-Utility-Functions.html#g-strcmp0" title="g_strcmp0 ()">g_strcmp0</a>                           (<em class="parameter"><code>const <span class="type">char</span> *str1</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *str2</code></em>);

<a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="returnvalue">gsize</span></a>               <a class="link" href="glib-String-Utility-Functions.html#g-strlcpy" title="g_strlcpy ()">g_strlcpy</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *dest</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *src</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> dest_size</code></em>);
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="returnvalue">gsize</span></a>               <a class="link" href="glib-String-Utility-Functions.html#g-strlcat" title="g_strlcat ()">g_strlcat</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *dest</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *src</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> dest_size</code></em>);

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strdup-printf" title="g_strdup_printf ()">g_strdup_printf</a>                     (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strdup-vprintf" title="g_strdup_vprintf ()">g_strdup_vprintf</a>                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-printf" title="g_printf ()">g_printf</a>                            (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-vprintf" title="g_vprintf ()">g_vprintf</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-fprintf" title="g_fprintf ()">g_fprintf</a>                           (<em class="parameter"><code><span class="type">FILE</span> *file</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-vfprintf" title="g_vfprintf ()">g_vfprintf</a>                          (<em class="parameter"><code><span class="type">FILE</span> *file</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-sprintf" title="g_sprintf ()">g_sprintf</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-vsprintf" title="g_vsprintf ()">g_vsprintf</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()">g_snprintf</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gulong" title="gulong"><span class="type">gulong</span></a> n</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-vsnprintf" title="g_vsnprintf ()">g_vsnprintf</a>                         (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gulong" title="gulong"><span class="type">gulong</span></a> n</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-vasprintf" title="g_vasprintf ()">g_vasprintf</a>                         (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="returnvalue">gsize</span></a>               <a class="link" href="glib-String-Utility-Functions.html#g-printf-string-upper-bound" title="g_printf_string_upper_bound ()">g_printf_string_upper_bound</a>         (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);

<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isalnum" title="g_ascii_isalnum ()">g_ascii_isalnum</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isalpha" title="g_ascii_isalpha ()">g_ascii_isalpha</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-iscntrl" title="g_ascii_iscntrl ()">g_ascii_iscntrl</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isdigit" title="g_ascii_isdigit ()">g_ascii_isdigit</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isgraph" title="g_ascii_isgraph ()">g_ascii_isgraph</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-islower" title="g_ascii_islower ()">g_ascii_islower</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isprint" title="g_ascii_isprint ()">g_ascii_isprint</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-ispunct" title="g_ascii_ispunct ()">g_ascii_ispunct</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isspace" title="g_ascii_isspace ()">g_ascii_isspace</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isupper" title="g_ascii_isupper ()">g_ascii_isupper</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isxdigit" title="g_ascii_isxdigit ()">g_ascii_isxdigit</a>                    (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);

<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-ascii-digit-value" title="g_ascii_digit_value ()">g_ascii_digit_value</a>                 (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-ascii-xdigit-value" title="g_ascii_xdigit_value ()">g_ascii_xdigit_value</a>                (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);

<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strcasecmp" title="g_ascii_strcasecmp ()">g_ascii_strcasecmp</a>                  (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strncasecmp" title="g_ascii_strncasecmp ()">g_ascii_strncasecmp</a>                 (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> n</code></em>);

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strup" title="g_ascii_strup ()">g_ascii_strup</a>                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> len</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strdown" title="g_ascii_strdown ()">g_ascii_strdown</a>                     (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> len</code></em>);

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a>               <a class="link" href="glib-String-Utility-Functions.html#g-ascii-tolower" title="g_ascii_tolower ()">g_ascii_tolower</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a>               <a class="link" href="glib-String-Utility-Functions.html#g-ascii-toupper" title="g_ascii_toupper ()">g_ascii_toupper</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);

<a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="returnvalue">GString</span></a> *           <a class="link" href="glib-String-Utility-Functions.html#g-string-ascii-up" title="g_string_ascii_up ()">g_string_ascii_up</a>                   (<em class="parameter"><code><a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="type">GString</span></a> *string</code></em>);
<a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="returnvalue">GString</span></a> *           <a class="link" href="glib-String-Utility-Functions.html#g-string-ascii-down" title="g_string_ascii_down ()">g_string_ascii_down</a>                 (<em class="parameter"><code><a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="type">GString</span></a> *string</code></em>);

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strup" title="g_strup ()">g_strup</a>                             (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strdown" title="g_strdown ()">g_strdown</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);

<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-strcasecmp" title="g_strcasecmp ()">g_strcasecmp</a>                        (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>);
<a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()">g_strncasecmp</a>                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> n</code></em>);

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strreverse" title="g_strreverse ()">g_strreverse</a>                        (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);

<a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="returnvalue">gint64</span></a>              <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtoll" title="g_ascii_strtoll ()">g_ascii_strtoll</a>                     (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> base</code></em>);
<a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="returnvalue">guint64</span></a>             <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtoull" title="g_ascii_strtoull ()">g_ascii_strtoull</a>                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> base</code></em>);
#define             <a class="link" href="glib-String-Utility-Functions.html#G-ASCII-DTOSTR-BUF-SIZE:CAPS" title="G_ASCII_DTOSTR_BUF_SIZE">G_ASCII_DTOSTR_BUF_SIZE</a>
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="returnvalue">gdouble</span></a>             <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()">g_ascii_strtod</a>                      (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()">g_ascii_dtostr</a>                      (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> buf_len</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> d</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-ascii-formatd" title="g_ascii_formatd ()">g_ascii_formatd</a>                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> buf_len</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> d</code></em>);
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="returnvalue">gdouble</span></a>             <a class="link" href="glib-String-Utility-Functions.html#g-strtod" title="g_strtod ()">g_strtod</a>                            (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>);

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strchug" title="g_strchug ()">g_strchug</a>                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strchomp" title="g_strchomp ()">g_strchomp</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);
#define             <a class="link" href="glib-String-Utility-Functions.html#g-strstrip" title="g_strstrip()">g_strstrip</a>                          (string)

<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strdelimit" title="g_strdelimit ()">g_strdelimit</a>                        (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *delimiters</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> new_delimiter</code></em>);
#define             <a class="link" href="glib-String-Utility-Functions.html#G-STR-DELIMITERS:CAPS" title="G_STR_DELIMITERS">G_STR_DELIMITERS</a>
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strescape" title="g_strescape ()">g_strescape</a>                         (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *source</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *exceptions</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strcompress" title="g_strcompress ()">g_strcompress</a>                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *source</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strcanon" title="g_strcanon ()">g_strcanon</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *valid_chars</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> substitutor</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> **            <a class="link" href="glib-String-Utility-Functions.html#g-strsplit" title="g_strsplit ()">g_strsplit</a>                          (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *delimiter</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> max_tokens</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> **            <a class="link" href="glib-String-Utility-Functions.html#g-strsplit-set" title="g_strsplit_set ()">g_strsplit_set</a>                      (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *delimiters</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> max_tokens</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()">g_strfreev</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strconcat" title="g_strconcat ()">g_strconcat</a>                         (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string1</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strjoin" title="g_strjoin ()">g_strjoin</a>                           (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *separator</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             <a class="link" href="glib-String-Utility-Functions.html#g-strjoinv" title="g_strjoinv ()">g_strjoinv</a>                          (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *separator</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);
<a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a>               <a class="link" href="glib-String-Utility-Functions.html#g-strv-length" title="g_strv_length ()">g_strv_length</a>                       (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);

const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="glib-String-Utility-Functions.html#g-strerror" title="g_strerror ()">g_strerror</a>                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> errnum</code></em>);
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *       <a class="link" href="glib-String-Utility-Functions.html#g-strsignal" title="g_strsignal ()">g_strsignal</a>                         (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> signum</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="glib-String-Utility-Functions.description"></a><h2>Description</h2>
<p>
This section describes a number of utility functions for creating,
duplicating, and manipulating strings.
</p>
<p>
Note that the functions <a class="link" href="glib-String-Utility-Functions.html#g-printf" title="g_printf ()"><code class="function">g_printf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-fprintf" title="g_fprintf ()"><code class="function">g_fprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-sprintf" title="g_sprintf ()"><code class="function">g_sprintf()</code></a>,
<a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()"><code class="function">g_snprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-vprintf" title="g_vprintf ()"><code class="function">g_vprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-vfprintf" title="g_vfprintf ()"><code class="function">g_vfprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-vsprintf" title="g_vsprintf ()"><code class="function">g_vsprintf()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-vsnprintf" title="g_vsnprintf ()"><code class="function">g_vsnprintf()</code></a>
are declared in the header <code class="filename">gprintf.h</code> which is
<span class="emphasis"><em>not</em></span> included in <code class="filename">glib.h</code>
(otherwise using <code class="filename">glib.h</code> would drag in
<code class="filename">stdio.h</code>), so you'll have to explicitly include
<code class="literal">&lt;glib/gprintf.h&gt;</code> in order to use the GLib
<code class="function">printf()</code> functions.
</p>
<p>
</p>
<p><a name="string-precision"></a>While you may use the <code class="function">printf()</code> functions
to format UTF-8 strings, notice that the precision of a
<code class="literal">%Ns</code> parameter is interpreted as the
number of <span class="emphasis"><em>bytes</em></span>, not <span class="emphasis"><em>characters</em></span>
to print. On top of that, the GNU libc implementation of the <code class="function">printf()</code>
functions has the "feature" that it checks that the string given for
the <code class="literal">%Ns</code> parameter consists of a whole number
of characters in the current encoding. So, unless you are sure you are
always going to be in an UTF-8 locale or your know your text is restricted
to ASCII, avoid using <code class="literal">%Ns</code>. If your intention is
to format strings for a certain number of columns, then
<code class="literal">%Ns</code> is not a correct solution anyway, since it
fails to take wide characters (see <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-iswide" title="g_unichar_iswide ()"><code class="function">g_unichar_iswide()</code></a>) into account.
</p>
<p>
</p>
</div>
<div class="refsect1">
<a name="glib-String-Utility-Functions.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="g-strdup"></a><h3>g_strdup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strdup                            (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>);</pre>
<p>
Duplicates a string. If <em class="parameter"><code>str</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> it returns <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>.
The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>
when no longer needed.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td>the string to duplicate</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated copy of <em class="parameter"><code>str</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strndup"></a><h3>g_strndup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strndup                           (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> n</code></em>);</pre>
<p>
Duplicates the first <em class="parameter"><code>n</code></em> bytes of a string, returning a newly-allocated
buffer <em class="parameter"><code>n</code></em> + 1 bytes long which will always be nul-terminated.
If <em class="parameter"><code>str</code></em> is less than <em class="parameter"><code>n</code></em> bytes long the buffer is padded with nuls.
If <em class="parameter"><code>str</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> it returns <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>.
The returned value should be freed when no longer needed.
</p>
<p>
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>
To copy a number of characters from a UTF-8 encoded string, use
<a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strncpy" title="g_utf8_strncpy ()"><code class="function">g_utf8_strncpy()</code></a> instead.
</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td>the string to duplicate</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>the maximum number of bytes to copy from <em class="parameter"><code>str</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated buffer containing the first <em class="parameter"><code>n</code></em> bytes
of <em class="parameter"><code>str</code></em>, nul-terminated</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strdupv"></a><h3>g_strdupv ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> **            g_strdupv                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);</pre>
<p>
Copies <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings. The copy is a deep copy;
the new array should be freed by first freeing each string, then
the array itself. <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> does this for you. If called
on a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> value, <a class="link" href="glib-String-Utility-Functions.html#g-strdupv" title="g_strdupv ()"><code class="function">g_strdupv()</code></a> simply returns <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strnfill"></a><h3>g_strnfill ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strnfill                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> length</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> fill_char</code></em>);</pre>
<p>
Creates a new string <em class="parameter"><code>length</code></em> bytes long filled with <em class="parameter"><code>fill_char</code></em>.
The returned string should be freed when no longer needed.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td>the length of the new string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fill_char</code></em> :</span></p></td>
<td>the byte to fill the string with</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string filled the <em class="parameter"><code>fill_char</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-stpcpy"></a><h3>g_stpcpy ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_stpcpy                            (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *dest</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *src</code></em>);</pre>
<p>
Copies a nul-terminated string into the dest buffer, include the
trailing nul, and return a pointer to the trailing nul byte.
This is useful for concatenating multiple strings together
without having to repeatedly scan for the end.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td>destination buffer.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td>source string.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to trailing nul byte.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strstr-len"></a><h3>g_strstr_len ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strstr_len                        (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *haystack</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> haystack_len</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *needle</code></em>);</pre>
<p>
Searches the string <em class="parameter"><code>haystack</code></em> for the first occurrence
of the string <em class="parameter"><code>needle</code></em>, limiting the length of the search
to <em class="parameter"><code>haystack_len</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack</code></em> :</span></p></td>
<td>a string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack_len</code></em> :</span></p></td>
<td>the maximum length of <em class="parameter"><code>haystack</code></em>. Note that -1 is
a valid length, if <em class="parameter"><code>haystack</code></em> is nul-terminated, meaning it will
search through the whole string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>needle</code></em> :</span></p></td>
<td>the string to search for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the found occurrence, or
<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if not found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strrstr"></a><h3>g_strrstr ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strrstr                           (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *haystack</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *needle</code></em>);</pre>
<p>
Searches the string <em class="parameter"><code>haystack</code></em> for the last occurrence
of the string <em class="parameter"><code>needle</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack</code></em> :</span></p></td>
<td>a nul-terminated string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>needle</code></em> :</span></p></td>
<td>the nul-terminated string to search for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the found occurrence, or
<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if not found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strrstr-len"></a><h3>g_strrstr_len ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strrstr_len                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *haystack</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> haystack_len</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *needle</code></em>);</pre>
<p>
Searches the string <em class="parameter"><code>haystack</code></em> for the last occurrence
of the string <em class="parameter"><code>needle</code></em>, limiting the length of the search
to <em class="parameter"><code>haystack_len</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack</code></em> :</span></p></td>
<td>a nul-terminated string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack_len</code></em> :</span></p></td>
<td>the maximum length of <em class="parameter"><code>haystack</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>needle</code></em> :</span></p></td>
<td>the nul-terminated string to search for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a pointer to the found occurrence, or
<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if not found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-str-has-prefix"></a><h3>g_str_has_prefix ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_str_has_prefix                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *prefix</code></em>);</pre>
<p>
Looks whether the string <em class="parameter"><code>str</code></em> begins with <em class="parameter"><code>prefix</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td>a nul-terminated string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>the nul-terminated prefix to look for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>str</code></em> begins with <em class="parameter"><code>prefix</code></em>, <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-str-has-suffix"></a><h3>g_str_has_suffix ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_str_has_suffix                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *suffix</code></em>);</pre>
<p>
Looks whether the string <em class="parameter"><code>str</code></em> ends with <em class="parameter"><code>suffix</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td>a nul-terminated string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>suffix</code></em> :</span></p></td>
<td>the nul-terminated suffix to look for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>str</code></em> end with <em class="parameter"><code>suffix</code></em>, <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-strcmp0"></a><h3>g_strcmp0 ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 g_strcmp0                           (<em class="parameter"><code>const <span class="type">char</span> *str1</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *str2</code></em>);</pre>
<p>
Compares <em class="parameter"><code>str1</code></em> and <em class="parameter"><code>str2</code></em> like <code class="function">strcmp()</code>. Handles <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>
gracefully by sorting it before non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> strings.
Comparing two <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> pointers returns 0.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str1</code></em> :</span></p></td>
<td>a C string or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>str2</code></em> :</span></p></td>
<td>another C string or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>an integer less than, equal to, or greater than zero, if <em class="parameter"><code>str1</code></em> is &lt;, == or &gt; than <em class="parameter"><code>str2</code></em>.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.16</p>
</div>
<hr>
<div class="refsect2">
<a name="g-strlcpy"></a><h3>g_strlcpy ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="returnvalue">gsize</span></a>               g_strlcpy                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *dest</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *src</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> dest_size</code></em>);</pre>
<p>
Portability wrapper that calls <code class="function">strlcpy()</code> on systems which have it,
and emulates <code class="function">strlcpy()</code> otherwise. Copies <em class="parameter"><code>src</code></em> to <em class="parameter"><code>dest</code></em>; <em class="parameter"><code>dest</code></em> is
guaranteed to be nul-terminated; <em class="parameter"><code>src</code></em> must be nul-terminated;
<em class="parameter"><code>dest_size</code></em> is the buffer size, not the number of chars to copy.
</p>
<p>
At most dest_size - 1 characters will be copied. Always nul-terminates
(unless dest_size == 0). This function does <span class="emphasis"><em>not</em></span>
allocate memory. Unlike <code class="function">strncpy()</code>, this function doesn't pad dest (so
it's often faster). It returns the size of the attempted result,
strlen (src), so if <em class="parameter"><code>retval</code></em> &gt;= <em class="parameter"><code>dest_size</code></em>, truncation occurred.
</p>
<p>
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>Caveat: <code class="function">strlcpy()</code> is supposedly more secure than
<code class="function">strcpy()</code> or <code class="function">strncpy()</code>, but if you really want to avoid screwups,
<a class="link" href="glib-String-Utility-Functions.html#g-strdup" title="g_strdup ()"><code class="function">g_strdup()</code></a> is an even better idea.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td>destination buffer</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td>source buffer</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_size</code></em> :</span></p></td>
<td>length of <em class="parameter"><code>dest</code></em> in bytes</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>length of <em class="parameter"><code>src</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strlcat"></a><h3>g_strlcat ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="returnvalue">gsize</span></a>               g_strlcat                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *dest</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *src</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> dest_size</code></em>);</pre>
<p>
Portability wrapper that calls <code class="function">strlcat()</code> on systems which have it,
and emulates it otherwise. Appends nul-terminated <em class="parameter"><code>src</code></em> string to <em class="parameter"><code>dest</code></em>,
guaranteeing nul-termination for <em class="parameter"><code>dest</code></em>. The total size of <em class="parameter"><code>dest</code></em> won't
exceed <em class="parameter"><code>dest_size</code></em>.
</p>
<p>
At most dest_size - 1 characters will be copied.
Unlike strncat, dest_size is the full size of dest, not the space left over.
This function does NOT allocate memory.
This always NUL terminates (unless siz == 0 or there were no NUL characters
in the dest_size characters of dest to start with).
</p>
<p>
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>Caveat: this is supposedly a more secure alternative to
<code class="function">strcat()</code> or <code class="function">strncat()</code>, but for real security <a class="link" href="glib-String-Utility-Functions.html#g-strconcat" title="g_strconcat ()"><code class="function">g_strconcat()</code></a> is harder
to mess up.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td>destination buffer, already containing one nul-terminated string</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td>source buffer</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_size</code></em> :</span></p></td>
<td>length of <em class="parameter"><code>dest</code></em> buffer in bytes (not length of existing string
inside <em class="parameter"><code>dest</code></em>)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>size of attempted result, which is MIN (dest_size, strlen
(original dest)) + strlen (src), so if retval &gt;= dest_size,
truncation occurred.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strdup-printf"></a><h3>g_strdup_printf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strdup_printf                     (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
Similar to the standard C <code class="function">sprintf()</code> function but safer, since it
calculates the maximum space required and allocates memory to hold
the result. The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a> when no
longer needed.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>the parameters to insert into the format string</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string holding the result</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strdup-vprintf"></a><h3>g_strdup_vprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strdup_vprintf                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
Similar to the standard C <code class="function">vsprintf()</code> function but safer, since it
calculates the maximum space required and allocates memory to hold
the result. The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a> when
no longer needed.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-vasprintf" title="g_vasprintf ()"><code class="function">g_vasprintf()</code></a>, which offers the same functionality, but
additionally returns the length of the allocated string.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the list of parameters to insert into the format string</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string holding the result</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-printf"></a><h3>g_printf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_printf                            (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
An implementation of the standard <code class="function">printf()</code> function which supports 
positional parameters, as specified in the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>the arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-vprintf"></a><h3>g_vprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_vprintf                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
An implementation of the standard <code class="function">vprintf()</code> function which supports 
positional parameters, as specified in the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the list of arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-fprintf"></a><h3>g_fprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_fprintf                           (<em class="parameter"><code><span class="type">FILE</span> *file</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
An implementation of the standard <code class="function">fprintf()</code> function which supports 
positional parameters, as specified in the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>file</code></em> :</span></p></td>
<td>the stream to write to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>the arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-vfprintf"></a><h3>g_vfprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_vfprintf                          (<em class="parameter"><code><span class="type">FILE</span> *file</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
An implementation of the standard <code class="function">fprintf()</code> function which supports 
positional parameters, as specified in the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>file</code></em> :</span></p></td>
<td>the stream to write to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the list of arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-sprintf"></a><h3>g_sprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_sprintf                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
An implementation of the standard <code class="function">sprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.
</p>
<p>
Note that it is usually better to use <a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()"><code class="function">g_snprintf()</code></a>, to avoid the
risk of buffer overflow.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-strdup-printf" title="g_strdup_printf ()"><code class="function">g_strdup_printf()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>A pointer to a memory buffer to contain the resulting string. It
is up to the caller to ensure that the allocated buffer is large
enough to hold the formatted result</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>the arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-vsprintf"></a><h3>g_vsprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_vsprintf                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
An implementation of the standard <code class="function">vsprintf()</code> function which supports 
positional parameters, as specified in the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the buffer to hold the output.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the list of arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="g-snprintf"></a><h3>g_snprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_snprintf                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gulong" title="gulong"><span class="type">gulong</span></a> n</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
A safer form of the standard <code class="function">sprintf()</code> function. The output is guaranteed
to not exceed <em class="parameter"><code>n</code></em> characters (including the terminating nul character), so
it is easy to ensure that a buffer overflow cannot occur.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-strdup-printf" title="g_strdup_printf ()"><code class="function">g_strdup_printf()</code></a>.
</p>
<p>
In versions of GLib prior to 1.2.3, this function may return -1 if the
output was truncated, and the truncated string may not be nul-terminated.
In versions prior to 1.3.12, this function returns the length of the output
string.
</p>
<p>
The return value of <a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()"><code class="function">g_snprintf()</code></a> conforms to the <code class="function">snprintf()</code>
function as standardized in ISO C99. Note that this is different from
traditional <code class="function">snprintf()</code>, which returns the length of the output string.
</p>
<p>
The format string may contain positional parameters, as specified in
the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the buffer to hold the output.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>the maximum number of bytes to produce (including the
terminating nul character).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>the arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes which would be produced if the buffer
was large enough.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-vsnprintf"></a><h3>g_vsnprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_vsnprintf                         (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gulong" title="gulong"><span class="type">gulong</span></a> n</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
A safer form of the standard <code class="function">vsprintf()</code> function. The output is guaranteed
to not exceed <em class="parameter"><code>n</code></em> characters (including the terminating nul character), so 
it is easy to ensure that a buffer overflow cannot occur.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-strdup-vprintf" title="g_strdup_vprintf ()"><code class="function">g_strdup_vprintf()</code></a>.
</p>
<p>
In versions of GLib prior to 1.2.3, this function may return -1 if the 
output was truncated, and the truncated string may not be nul-terminated.
In versions prior to 1.3.12, this function returns the length of the output 
string.
</p>
<p>
The return value of <a class="link" href="glib-String-Utility-Functions.html#g-vsnprintf" title="g_vsnprintf ()"><code class="function">g_vsnprintf()</code></a> conforms to the <code class="function">vsnprintf()</code> function 
as standardized in ISO C99. Note that this is different from traditional 
<code class="function">vsnprintf()</code>, which returns the length of the output string.
</p>
<p>
The format string may contain positional parameters, as specified in 
the Single Unix Specification.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the buffer to hold the output.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>the maximum number of bytes to produce (including the
terminating nul character).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the list of arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes which would be produced if the buffer
was large enough.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-vasprintf"></a><h3>g_vasprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_vasprintf                         (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **string</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> const *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
An implementation of the GNU <code class="function">vasprintf()</code> function which supports 
positional parameters, as specified in the Single Unix Specification.
This function is similar to <a class="link" href="glib-String-Utility-Functions.html#g-vsprintf" title="g_vsprintf ()"><code class="function">g_vsprintf()</code></a>, except that it allocates a 
string to hold the output, instead of putting the output in a buffer 
you allocate in advance.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the return location for the newly-allocated string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the list of arguments to insert in the output.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the number of bytes printed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.4</p>
</div>
<hr>
<div class="refsect2">
<a name="g-printf-string-upper-bound"></a><h3>g_printf_string_upper_bound ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="returnvalue">gsize</span></a>               g_printf_string_upper_bound         (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
Calculates the maximum space needed to store the output
of the <code class="function">sprintf()</code> function.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>the format string. See the <code class="function">printf()</code> documentation</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the parameters to be inserted into the format string</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the maximum space needed to store the formatted string</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isalnum"></a><h3>g_ascii_isalnum ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isalnum                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is alphanumeric.
</p>
<p>
Unlike the standard C library <code class="function">isalnum()</code> function, this only
recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need to
cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII alphanumeric character</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isalpha"></a><h3>g_ascii_isalpha ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isalpha                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is alphabetic (i.e. a letter).
</p>
<p>
Unlike the standard C library <code class="function">isalpha()</code> function, this only
recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need to
cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII alphabetic character</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-iscntrl"></a><h3>g_ascii_iscntrl ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_iscntrl                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is a control character.
</p>
<p>
Unlike the standard C library <code class="function">iscntrl()</code> function, this only
recognizes standard ASCII control characters and ignores the
locale, returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also,
unlike the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need to
cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII control character.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isdigit"></a><h3>g_ascii_isdigit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isdigit                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is digit (0-9).
</p>
<p>
Unlike the standard C library <code class="function">isdigit()</code> function, this takes
a <span class="type">char</span>, not an <span class="type">int</span>, so don't call it
on <code class="literal">EOF</code>, but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly
non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII digit.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isgraph"></a><h3>g_ascii_isgraph ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isgraph                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is a printing character and not a space.
</p>
<p>
Unlike the standard C library <code class="function">isgraph()</code> function, this only
recognizes standard ASCII characters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need
to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII printing character other than space.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-islower"></a><h3>g_ascii_islower ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_islower                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is an ASCII lower case letter.
</p>
<p>
Unlike the standard C library <code class="function">islower()</code> function, this only
recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need
to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly
non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII lower case letter</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isprint"></a><h3>g_ascii_isprint ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isprint                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is a printing character.
</p>
<p>
Unlike the standard C library <code class="function">isprint()</code> function, this only
recognizes standard ASCII characters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need
to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII printing character.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-ispunct"></a><h3>g_ascii_ispunct ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_ispunct                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is a punctuation character.
</p>
<p>
Unlike the standard C library <code class="function">ispunct()</code> function, this only
recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need to
cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII punctuation character.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isspace"></a><h3>g_ascii_isspace ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isspace                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is a white-space character.
</p>
<p>
Unlike the standard C library <code class="function">isspace()</code> function, this only
recognizes standard ASCII white-space and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need to
cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII white-space character</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isupper"></a><h3>g_ascii_isupper ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isupper                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is an ASCII upper case letter.
</p>
<p>
Unlike the standard C library <code class="function">isupper()</code> function, this only
recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also, unlike
the standard library function, this takes a <span class="type">char</span>,
not an <span class="type">int</span>, so don't call it on <code class="literal">EOF</code>, but no need to
worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly non-ASCII
character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII upper case letter</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-isxdigit"></a><h3>g_ascii_isxdigit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a>            g_ascii_isxdigit                    (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines whether a character is a hexadecimal-digit character.
</p>
<p>
Unlike the standard C library <code class="function">isxdigit()</code> function, this takes
a <span class="type">char</span>, not an <span class="type">int</span>, so don't call it
on <code class="literal">EOF</code>, but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>c</code></em> is an ASCII hexadecimal-digit character.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-digit-value"></a><h3>g_ascii_digit_value ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_ascii_digit_value                 (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines the numeric value of a character as a decimal
digit. Differs from <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-digit-value" title="g_unichar_digit_value ()"><code class="function">g_unichar_digit_value()</code></a> because it takes
a char, so there's no worry about sign extension if characters
are signed.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>an ASCII character.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>If <em class="parameter"><code>c</code></em> is a decimal digit (according to
<a class="link" href="glib-String-Utility-Functions.html#g-ascii-isdigit" title="g_ascii_isdigit ()"><code class="function">g_ascii_isdigit()</code></a>), its numeric value. Otherwise, -1.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-xdigit-value"></a><h3>g_ascii_xdigit_value ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_ascii_xdigit_value                (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Determines the numeric value of a character as a hexidecimal
digit. Differs from <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-xdigit-value" title="g_unichar_xdigit_value ()"><code class="function">g_unichar_xdigit_value()</code></a> because it takes
a char, so there's no worry about sign extension if characters
are signed.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>an ASCII character.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>If <em class="parameter"><code>c</code></em> is a hex digit (according to
<a class="link" href="glib-String-Utility-Functions.html#g-ascii-isxdigit" title="g_ascii_isxdigit ()"><code class="function">g_ascii_isxdigit()</code></a>), its numeric value. Otherwise, -1.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strcasecmp"></a><h3>g_ascii_strcasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_ascii_strcasecmp                  (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>);</pre>
<p>
Compare two strings, ignoring the case of ASCII characters.
</p>
<p>
Unlike the BSD <code class="function">strcasecmp()</code> function, this only recognizes standard
ASCII letters and ignores the locale, treating all non-ASCII
bytes as if they are not letters.
</p>
<p>
This function should be used only on strings that are known to be
in encodings where the bytes corresponding to ASCII letters always
represent themselves. This includes UTF-8 and the ISO-8859-*
charsets, but not for instance double-byte encodings like the
Windows Codepage 932, where the trailing bytes of double-byte
characters include all ASCII letters. If you compare two CP932
strings using this function, you will get false matches.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td>string to compare with <em class="parameter"><code>s2</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td>string to compare with <em class="parameter"><code>s1</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> &lt; <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> &gt; <em class="parameter"><code>s2</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strncasecmp"></a><h3>g_ascii_strncasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_ascii_strncasecmp                 (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a> n</code></em>);</pre>
<p>
Compare <em class="parameter"><code>s1</code></em> and <em class="parameter"><code>s2</code></em>, ignoring the case of ASCII characters and any
characters after the first <em class="parameter"><code>n</code></em> in each string.
</p>
<p>
Unlike the BSD <code class="function">strcasecmp()</code> function, this only recognizes standard
ASCII letters and ignores the locale, treating all non-ASCII
characters as if they are not letters.
</p>
<p>
The same warning as in <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strcasecmp" title="g_ascii_strcasecmp ()"><code class="function">g_ascii_strcasecmp()</code></a> applies: Use this
function only on strings known to be in encodings where bytes
corresponding to ASCII letters always represent themselves.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td>string to compare with <em class="parameter"><code>s2</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td>string to compare with <em class="parameter"><code>s1</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>number of characters to compare.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> &lt; <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> &gt; <em class="parameter"><code>s2</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strup"></a><h3>g_ascii_strup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_ascii_strup                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> len</code></em>);</pre>
<p>
Converts all lower case ASCII letters to upper case ASCII letters.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td>a string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td>length of <em class="parameter"><code>str</code></em> in bytes, or -1 if <em class="parameter"><code>str</code></em> is nul-terminated.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated string, with all the lower case
characters in <em class="parameter"><code>str</code></em> converted to upper case, with
semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-toupper" title="g_ascii_toupper ()"><code class="function">g_ascii_toupper()</code></a>. (Note
that this is unlike the old <a class="link" href="glib-String-Utility-Functions.html#g-strup" title="g_strup ()"><code class="function">g_strup()</code></a>, which modified
the string in place.)</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strdown"></a><h3>g_ascii_strdown ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_ascii_strdown                     (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a> len</code></em>);</pre>
<p>
Converts all upper case ASCII letters to lower case ASCII letters.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td>a string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td>length of <em class="parameter"><code>str</code></em> in bytes, or -1 if <em class="parameter"><code>str</code></em> is nul-terminated.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string, with all the upper case
characters in <em class="parameter"><code>str</code></em> converted to lower case, with
semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-tolower" title="g_ascii_tolower ()"><code class="function">g_ascii_tolower()</code></a>. (Note
that this is unlike the old <a class="link" href="glib-String-Utility-Functions.html#g-strdown" title="g_strdown ()"><code class="function">g_strdown()</code></a>, which modified
the string in place.)</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-tolower"></a><h3>g_ascii_tolower ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a>               g_ascii_tolower                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Convert a character to ASCII lower case.
</p>
<p>
Unlike the standard C library <code class="function">tolower()</code> function, this only
recognizes standard ASCII letters and ignores the locale, returning
all non-ASCII characters unchanged, even if they are lower case
letters in a particular character set. Also unlike the standard
library function, this takes and returns a char, not an int, so
don't call it on <code class="literal">EOF</code> but no need to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>
before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the result of converting <em class="parameter"><code>c</code></em> to lower case.
If <em class="parameter"><code>c</code></em> is not an ASCII upper case letter,
<em class="parameter"><code>c</code></em> is returned unchanged.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-toupper"></a><h3>g_ascii_toupper ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a>               g_ascii_toupper                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> c</code></em>);</pre>
<p>
Convert a character to ASCII upper case.
</p>
<p>
Unlike the standard C library <code class="function">toupper()</code> function, this only
recognizes standard ASCII letters and ignores the locale, returning
all non-ASCII characters unchanged, even if they are upper case
letters in a particular character set. Also unlike the standard
library function, this takes and returns a char, not an int, so
don't call it on <code class="literal">EOF</code> but no need to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>
before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the result of converting <em class="parameter"><code>c</code></em> to upper case.
If <em class="parameter"><code>c</code></em> is not an ASCII lower case letter,
<em class="parameter"><code>c</code></em> is returned unchanged.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-string-ascii-up"></a><h3>g_string_ascii_up ()</h3>
<pre class="programlisting"><a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="returnvalue">GString</span></a> *           g_string_ascii_up                   (<em class="parameter"><code><a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="type">GString</span></a> *string</code></em>);</pre>
<p>
Converts all lowercase ASCII letters to uppercase ASCII letters.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a GString</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>passed-in <em class="parameter"><code>string</code></em> pointer, with all the
lowercase characters converted to uppercase in place,
with semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-toupper" title="g_ascii_toupper ()"><code class="function">g_ascii_toupper()</code></a>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-string-ascii-down"></a><h3>g_string_ascii_down ()</h3>
<pre class="programlisting"><a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="returnvalue">GString</span></a> *           g_string_ascii_down                 (<em class="parameter"><code><a class="link" href="glib-Strings.html#GString" title="struct GString"><span class="type">GString</span></a> *string</code></em>);</pre>
<p>
Converts all uppercase ASCII letters to lowercase ASCII letters.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a GString</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>passed-in <em class="parameter"><code>string</code></em> pointer, with all the
uppercase characters converted to lowercase in place,
with semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-tolower" title="g_ascii_tolower ()"><code class="function">g_ascii_tolower()</code></a>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strup"></a><h3>g_strup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strup                             (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strup</code> has been deprecated since version 2.2 and should not be used in newly-written code. This function is totally broken for the reasons discussed
in the <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> docs - use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strup" title="g_ascii_strup ()"><code class="function">g_ascii_strup()</code></a> or <a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strup" title="g_utf8_strup ()"><code class="function">g_utf8_strup()</code></a> instead.</p>
</div>
<p>
Converts a string to upper case.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the string to convert.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the string</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strdown"></a><h3>g_strdown ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strdown                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strdown</code> has been deprecated since version 2.2 and should not be used in newly-written code. This function is totally broken for the reasons discussed
in the <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> docs - use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strdown" title="g_ascii_strdown ()"><code class="function">g_ascii_strdown()</code></a> or <a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strdown" title="g_utf8_strdown ()"><code class="function">g_utf8_strdown()</code></a>
instead.</p>
</div>
<p>
Converts a string to lower case.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the string to convert.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the string</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strcasecmp"></a><h3>g_strcasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_strcasecmp                        (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strcasecmp</code> has been deprecated since version 2.2 and should not be used in newly-written code. See <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> for a discussion of why this function
  is deprecated and how to replace it.</p>
</div>
<p>
A case-insensitive string comparison, corresponding to the standard
<code class="function">strcasecmp()</code> function on platforms which support it.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td>a string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td>a string to compare with <em class="parameter"><code>s1</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> &lt; <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> &gt; <em class="parameter"><code>s2</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strncasecmp"></a><h3>g_strncasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="returnvalue">gint</span></a>                g_strncasecmp                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s1</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *s2</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> n</code></em>);</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strncasecmp</code> has been deprecated since version 2.2 and should not be used in newly-written code. The problem with <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> is that it does the
comparison by calling <code class="function">toupper()</code>/<code class="function">tolower()</code>. These functions are
locale-specific and operate on single bytes. However, it is impossible
to handle things correctly from an I18N standpoint by operating on
bytes, since characters may be multibyte. Thus <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> is
broken if your string is guaranteed to be ASCII, since it's
locale-sensitive, and it's broken if your string is localized, since
it doesn't work on many encodings at all, including UTF-8, EUC-JP,
etc.
</p>
<p>
There are therefore two replacement functions: <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strncasecmp" title="g_ascii_strncasecmp ()"><code class="function">g_ascii_strncasecmp()</code></a>,
which only works on ASCII and is not locale-sensitive, and
<a class="link" href="glib-Unicode-Manipulation.html#g-utf8-casefold" title="g_utf8_casefold ()"><code class="function">g_utf8_casefold()</code></a>, which is good for case-insensitive sorting of UTF-8.</p>
</div>
<p>
A case-insensitive string comparison, corresponding to the standard
<code class="function">strncasecmp()</code> function on platforms which support it.
It is similar to <a class="link" href="glib-String-Utility-Functions.html#g-strcasecmp" title="g_strcasecmp ()"><code class="function">g_strcasecmp()</code></a> except it only compares the first <em class="parameter"><code>n</code></em>
characters of the strings.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td>a string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td>a string to compare with <em class="parameter"><code>s1</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>the maximum number of characters to compare.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> &lt; <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> &gt; <em class="parameter"><code>s2</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strreverse"></a><h3>g_strreverse ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strreverse                        (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);</pre>
<p>
Reverses all of the bytes in a string. For example,
<code class="literal">g_strreverse ("abcdef")</code> will result
in "fedcba".
</p>
<p>
Note that <a class="link" href="glib-String-Utility-Functions.html#g-strreverse" title="g_strreverse ()"><code class="function">g_strreverse()</code></a> doesn't work on UTF-8 strings
containing multibyte characters. For that purpose, use
<a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strreverse" title="g_utf8_strreverse ()"><code class="function">g_utf8_strreverse()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the string to reverse</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the same pointer passed in as <em class="parameter"><code>string</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strtoll"></a><h3>g_ascii_strtoll ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="returnvalue">gint64</span></a>              g_ascii_strtoll                     (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> base</code></em>);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a> value.
This function behaves like the standard <code class="function">strtoll()</code> function
does in the C locale. It does this without actually
changing the current locale, since that would not be
thread-safe.
</p>
<p>
This function is typically used when reading configuration
files or other non-user input that should be locale independent.
To handle input from the user you should normally use the
locale-sensitive system <code class="function">strtoll()</code> function.
</p>
<p>
If the correct value would cause overflow, <a class="link" href="glib-Basic-Types.html#G-MAXINT64:CAPS" title="G_MAXINT64"><code class="literal">G_MAXINT64</code></a> or <a class="link" href="glib-Basic-Types.html#G-MININT64:CAPS" title="G_MININT64"><code class="literal">G_MININT64</code></a>
is returned, and <code class="literal">ERANGE</code> is stored in <code class="literal">errno</code>.
If the base is outside the valid range, zero is returned, and
<code class="literal">EINVAL</code> is stored in <code class="literal">errno</code>. If the
string conversion fails, zero is returned, and <em class="parameter"><code>endptr</code></em> returns <em class="parameter"><code>nptr</code></em>
(if <em class="parameter"><code>endptr</code></em> is non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>).
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td>the string to convert to a numeric value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td>if non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base</code></em> :</span></p></td>
<td>to be used for the conversion, 2..36 or 0</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a> value or zero on error.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.12</p>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strtoull"></a><h3>g_ascii_strtoull ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="returnvalue">guint64</span></a>             g_ascii_strtoull                    (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a> base</code></em>);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="type">guint64</span></a> value.
This function behaves like the standard <code class="function">strtoull()</code> function
does in the C locale. It does this without actually
changing the current locale, since that would not be
thread-safe.
</p>
<p>
This function is typically used when reading configuration
files or other non-user input that should be locale independent.
To handle input from the user you should normally use the
locale-sensitive system <code class="function">strtoull()</code> function.
</p>
<p>
If the correct value would cause overflow, <a class="link" href="glib-Basic-Types.html#G-MAXUINT64:CAPS" title="G_MAXUINT64"><code class="literal">G_MAXUINT64</code></a>
is returned, and <code class="literal">ERANGE</code> is stored in <code class="literal">errno</code>.
If the base is outside the valid range, zero is returned, and
<code class="literal">EINVAL</code> is stored in <code class="literal">errno</code>.
If the string conversion fails, zero is returned, and <em class="parameter"><code>endptr</code></em> returns
<em class="parameter"><code>nptr</code></em> (if <em class="parameter"><code>endptr</code></em> is non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>).
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td>the string to convert to a numeric value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td>if non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base</code></em> :</span></p></td>
<td>to be used for the conversion, 2..36 or 0</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="type">guint64</span></a> value or zero on error.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="G-ASCII-DTOSTR-BUF-SIZE:CAPS"></a><h3>G_ASCII_DTOSTR_BUF_SIZE</h3>
<pre class="programlisting">#define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
</pre>
<p>
A good size for a buffer to be passed into <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()"><code class="function">g_ascii_dtostr()</code></a>.
It is guaranteed to be enough for all output of that function
on systems with 64bit IEEE-compatible doubles.
</p>
<p>
The typical usage would be something like:
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="type">char</span><span class="normal"> buf</span><span class="symbol">[</span><span class="normal"><a href="glib-String-Utility-Functions.html#G-ASCII-DTOSTR-BUF-SIZE:CAPS">G_ASCII_DTOSTR_BUF_SIZE</a></span><span class="symbol">];</span>

<span class="function">fprintf</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">out</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"value=%s</span><span class="specialchar">\n</span><span class="string">"</span><span class="symbol">,</span><span class="normal"> </span><span class="function"><a href="glib-String-Utility-Functions.html#g-ascii-dtostr">g_ascii_dtostr</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buf</span><span class="symbol">,</span><span class="normal"> </span><span class="keyword">sizeof</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">buf</span><span class="symbol">),</span><span class="normal"> value</span><span class="symbol">));</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-strtod"></a><h3>g_ascii_strtod ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="returnvalue">gdouble</span></a>             g_ascii_strtod                      (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.
</p>
<p>
This function behaves like the standard <code class="function">strtod()</code> function
does in the C locale. It does this without actually changing
the current locale, since that would not be thread-safe.
A limitation of the implementation is that this function
will still accept localized versions of infinities and NANs.
</p>
<p>
This function is typically used when reading configuration
files or other non-user input that should be locale independent.
To handle input from the user you should normally use the
locale-sensitive system <code class="function">strtod()</code> function.
</p>
<p>
To convert from a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to a string in a locale-insensitive
way, use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()"><code class="function">g_ascii_dtostr()</code></a>.
</p>
<p>
If the correct value would cause overflow, plus or minus <code class="literal">HUGE_VAL</code>
is returned (according to the sign of the value), and <code class="literal">ERANGE</code> is
stored in <code class="literal">errno</code>. If the correct value would cause underflow,
zero is returned and <code class="literal">ERANGE</code> is stored in <code class="literal">errno</code>.
</p>
<p>
This function resets <code class="literal">errno</code> before calling <code class="function">strtod()</code> so that
you can reliably detect overflow and underflow.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td>the string to convert to a numeric value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td>if non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-dtostr"></a><h3>g_ascii_dtostr ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_ascii_dtostr                      (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> buf_len</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> d</code></em>);</pre>
<p>
Converts a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to a string, using the '.' as
decimal point.
</p>
<p>
This functions generates enough precision that converting
the string back using <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()"><code class="function">g_ascii_strtod()</code></a> gives the same machine-number
(on machines with IEEE compatible 64bit doubles). It is
guaranteed that the size of the resulting string will never
be larger than <em class="parameter"><code>G_ASCII_DTOSTR_BUF_SIZE</code></em> bytes.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>A buffer to place the resulting string in</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf_len</code></em> :</span></p></td>
<td>The length of the buffer.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
<td>The <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to convert</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The pointer to the buffer with the converted string.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-ascii-formatd"></a><h3>g_ascii_formatd ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_ascii_formatd                     (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *buffer</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> buf_len</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *format</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> d</code></em>);</pre>
<p>
Converts a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to a string, using the '.' as
decimal point. To format the number you pass in
a <code class="function">printf()</code>-style format string. Allowed conversion
specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
</p>
<p>
If you just want to want to serialize the value into a
string, use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()"><code class="function">g_ascii_dtostr()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>A buffer to place the resulting string in</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf_len</code></em> :</span></p></td>
<td>The length of the buffer.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>The <code class="function">printf()</code>-style format to use for the
code to use for converting.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
<td>The <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to convert</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The pointer to the buffer with the converted string.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strtod"></a><h3>g_strtod ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="returnvalue">gdouble</span></a>             g_strtod                            (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *nptr</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **endptr</code></em>);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.
It calls the standard <code class="function">strtod()</code> function to handle the conversion, but
if the string is not completely converted it attempts the conversion
again with <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()"><code class="function">g_ascii_strtod()</code></a>, and returns the best match.
</p>
<p>
This function should seldom be used. The normal situation when reading
numbers not for human consumption is to use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()"><code class="function">g_ascii_strtod()</code></a>. Only when
you know that you must expect both locale formatted and C formatted numbers
should you use this. Make sure that you don't pass strings such as comma
separated lists of values, since the commas may be interpreted as a decimal
point in some locales, causing unexpected results.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td>the string to convert to a numeric value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td>if non-<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strchug"></a><h3>g_strchug ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strchug                           (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);</pre>
<p>
Removes leading whitespace from a string, by moving the rest
of the characters forward.
</p>
<p>
This function doesn't allocate or reallocate any memory;
it modifies <em class="parameter"><code>string</code></em> in place. The pointer to <em class="parameter"><code>string</code></em> is
returned to allow the nesting of functions.
</p>
<p>
Also see <a class="link" href="glib-String-Utility-Functions.html#g-strchomp" title="g_strchomp ()"><code class="function">g_strchomp()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-strstrip" title="g_strstrip()"><code class="function">g_strstrip()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to remove the leading whitespace from</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td><em class="parameter"><code>string</code></em></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strchomp"></a><h3>g_strchomp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strchomp                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>);</pre>
<p>
Removes trailing whitespace from a string.
</p>
<p>
This function doesn't allocate or reallocate any memory;
it modifies <em class="parameter"><code>string</code></em> in place. The pointer to <em class="parameter"><code>string</code></em> is
returned to allow the nesting of functions.
</p>
<p>
Also see <a class="link" href="glib-String-Utility-Functions.html#g-strchug" title="g_strchug ()"><code class="function">g_strchug()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-strstrip" title="g_strstrip()"><code class="function">g_strstrip()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to remove the trailing whitespace from</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<em class="parameter"><code>string</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strstrip"></a><h3>g_strstrip()</h3>
<pre class="programlisting">#define             g_strstrip( string )</pre>
<p>
Removes leading and trailing whitespace from a string.
See <a class="link" href="glib-String-Utility-Functions.html#g-strchomp" title="g_strchomp ()"><code class="function">g_strchomp()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-strchug" title="g_strchug ()"><code class="function">g_strchug()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to remove the leading and trailing whitespace from</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td><em class="parameter"><code>string</code></em></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strdelimit"></a><h3>g_strdelimit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strdelimit                        (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *delimiters</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> new_delimiter</code></em>);</pre>
<p>
Converts any delimiter characters in <em class="parameter"><code>string</code></em> to <em class="parameter"><code>new_delimiter</code></em>.
Any characters in <em class="parameter"><code>string</code></em> which are found in <em class="parameter"><code>delimiters</code></em> are
changed to the <em class="parameter"><code>new_delimiter</code></em> character. Modifies <em class="parameter"><code>string</code></em> in place,
and returns <em class="parameter"><code>string</code></em> itself, not a copy. The return value is to
allow nesting such as
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="function"><a href="glib-String-Utility-Functions.html#g-ascii-strup">g_ascii_strup</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function"><a href="glib-String-Utility-Functions.html#g-strdelimit">g_strdelimit</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">str</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"abc"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">'?'</span><span class="symbol">))</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the string to convert</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>delimiters</code></em> :</span></p></td>
<td>a string containing the current delimiters, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>
to use the standard delimiters defined in <a class="link" href="glib-String-Utility-Functions.html#G-STR-DELIMITERS:CAPS" title="G_STR_DELIMITERS"><span class="type">G_STR_DELIMITERS</span></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>new_delimiter</code></em> :</span></p></td>
<td>the new delimiter character</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td><em class="parameter"><code>string</code></em></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="G-STR-DELIMITERS:CAPS"></a><h3>G_STR_DELIMITERS</h3>
<pre class="programlisting">#define	 G_STR_DELIMITERS "_-|&gt; &lt;."
</pre>
<p>
The standard delimiters, used in <a class="link" href="glib-String-Utility-Functions.html#g-strdelimit" title="g_strdelimit ()"><code class="function">g_strdelimit()</code></a>.
</p>
</div>
<hr>
<div class="refsect2">
<a name="g-strescape"></a><h3>g_strescape ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strescape                         (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *source</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *exceptions</code></em>);</pre>
<p>
Escapes the special characters '\b', '\f', '\n', '\r', '\t', '\v', '\'
and '"' in the string <em class="parameter"><code>source</code></em> by inserting a '\' before
them. Additionally all characters in the range 0x01-0x1F (everything
below SPACE) and in the range 0x7F-0xFF (all non-ASCII chars) are
replaced with a '\' followed by their octal representation.
Characters supplied in <em class="parameter"><code>exceptions</code></em> are not escaped.
</p>
<p>
<a class="link" href="glib-String-Utility-Functions.html#g-strcompress" title="g_strcompress ()"><code class="function">g_strcompress()</code></a> does the reverse conversion.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>source</code></em> :</span></p></td>
<td>a string to escape</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>exceptions</code></em> :</span></p></td>
<td>a string of characters not to escape in <em class="parameter"><code>source</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated copy of <em class="parameter"><code>source</code></em> with certain
characters escaped. See above.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strcompress"></a><h3>g_strcompress ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strcompress                       (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *source</code></em>);</pre>
<p>
Replaces all escaped characters with their one byte equivalent.
</p>
<p>
This function does the reverse conversion of <a class="link" href="glib-String-Utility-Functions.html#g-strescape" title="g_strescape ()"><code class="function">g_strescape()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>source</code></em> :</span></p></td>
<td>a string to compress</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated copy of <em class="parameter"><code>source</code></em> with all escaped
character compressed</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strcanon"></a><h3>g_strcanon ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strcanon                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *valid_chars</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> substitutor</code></em>);</pre>
<p>
For each character in <em class="parameter"><code>string</code></em>, if the character is not in
<em class="parameter"><code>valid_chars</code></em>, replaces the character with <em class="parameter"><code>substitutor</code></em>.
Modifies <em class="parameter"><code>string</code></em> in place, and return <em class="parameter"><code>string</code></em> itself, not
a copy. The return value is to allow nesting such as
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="function"><a href="glib-String-Utility-Functions.html#g-ascii-strup">g_ascii_strup</a></span><span class="normal"> </span><span class="symbol">(</span><span class="function"><a href="glib-String-Utility-Functions.html#g-strcanon">g_strcanon</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">str</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"abc"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">'?'</span><span class="symbol">))</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a nul-terminated array of bytes</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>valid_chars</code></em> :</span></p></td>
<td>bytes permitted in <em class="parameter"><code>string</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>substitutor</code></em> :</span></p></td>
<td>replacement character for disallowed bytes</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td><em class="parameter"><code>string</code></em></td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strsplit"></a><h3>g_strsplit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> **            g_strsplit                          (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *delimiter</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> max_tokens</code></em>);</pre>
<p>
Splits a string into a maximum of <em class="parameter"><code>max_tokens</code></em> pieces, using the given
<em class="parameter"><code>delimiter</code></em>. If <em class="parameter"><code>max_tokens</code></em> is reached, the remainder of <em class="parameter"><code>string</code></em> is
appended to the last token.
</p>
<p>
As a special case, the result of splitting the empty string "" is an empty
vector, not a vector containing a single string. The reason for this
special case is that being able to represent a empty vector is typically
more useful than consistent handling of empty elements. If you do need
to represent empty elements, you'll need to check for the empty string
before calling <a class="link" href="glib-String-Utility-Functions.html#g-strsplit" title="g_strsplit ()"><code class="function">g_strsplit()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to split</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>delimiter</code></em> :</span></p></td>
<td>a string which specifies the places at which to split
the string. The delimiter is not included in any of the resulting
strings, unless <em class="parameter"><code>max_tokens</code></em> is reached.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>max_tokens</code></em> :</span></p></td>
<td>the maximum number of pieces to split <em class="parameter"><code>string</code></em> into.
If this is less than 1, the string is split completely.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings. Use
<a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> to free it.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strsplit-set"></a><h3>g_strsplit_set ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> **            g_strsplit_set                      (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string</code></em>,
                                                         <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *delimiters</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> max_tokens</code></em>);</pre>
<p>
Splits <em class="parameter"><code>string</code></em> into a number of tokens not containing any of the characters
in <em class="parameter"><code>delimiter</code></em>. A token is the (possibly empty) longest string that does not
contain any of the characters in <em class="parameter"><code>delimiters</code></em>. If <em class="parameter"><code>max_tokens</code></em> is reached, the
remainder is appended to the last token.
</p>
<p>
For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
<a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated vector containing the three strings "abc", "def",
and "ghi".
</p>
<p>
The result if g_strsplit_set (":def/ghi:", ":/", -1) is a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated
vector containing the four strings "", "def", "ghi", and "".
</p>
<p>
As a special case, the result of splitting the empty string "" is an empty
vector, not a vector containing a single string. The reason for this
special case is that being able to represent a empty vector is typically
more useful than consistent handling of empty elements. If you do need
to represent empty elements, you'll need to check for the empty string
before calling <a class="link" href="glib-String-Utility-Functions.html#g-strsplit-set" title="g_strsplit_set ()"><code class="function">g_strsplit_set()</code></a>.
</p>
<p>
Note that this function works on bytes not characters, so it can't be used
to delimit UTF-8 strings for anything but ASCII characters.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>The string to be tokenized</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>delimiters</code></em> :</span></p></td>
<td>A nul-terminated string containing bytes that are used
to split the string.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>max_tokens</code></em> :</span></p></td>
<td>The maximum number of tokens to split <em class="parameter"><code>string</code></em> into.
If this is less than 1, the string is split completely</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings. Use
<a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> to free it.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.4</p>
</div>
<hr>
<div class="refsect2">
<a name="g-strfreev"></a><h3>g_strfreev ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_strfreev                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);</pre>
<p>
Frees a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings, and the array itself.
If called on a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> value, <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> simply returns.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings to free</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strconcat"></a><h3>g_strconcat ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strconcat                         (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *string1</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
Concatenates all of the given strings into one long string.
The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a> when no longer needed.
</p>
<p>
Note that this function is usually not the right function to use to
assemble a translated message from pieces, since proper translation
often requires the pieces to be reordered.
</p>
<p>
</p>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p>The variable argument list <span class="emphasis"><em>must</em></span> end
with <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>. If you forget the <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-strconcat" title="g_strconcat ()"><code class="function">g_strconcat()</code></a> will start appending
random memory junk to your string.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string1</code></em> :</span></p></td>
<td>the first string to add, which must not be <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated list of strings to append to the string</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string containing all the string arguments</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strjoin"></a><h3>g_strjoin ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strjoin                           (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *separator</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
Joins a number of strings together to form one long string, with the
optional <em class="parameter"><code>separator</code></em> inserted between each of them. The returned string
should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>separator</code></em> :</span></p></td>
<td>a string to insert between each of the strings, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated list of strings to join</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string containing all of the strings joined
together, with <em class="parameter"><code>separator</code></em> between them</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strjoinv"></a><h3>g_strjoinv ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *             g_strjoinv                          (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *separator</code></em>,
                                                         <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);</pre>
<p>
Joins a number of strings together to form one long string, with the
optional <em class="parameter"><code>separator</code></em> inserted between each of them. The returned string
should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>separator</code></em> :</span></p></td>
<td>a string to insert between each of the strings, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings to join</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated string containing all of the strings joined
together, with <em class="parameter"><code>separator</code></em> between them</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strv-length"></a><h3>g_strv_length ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="returnvalue">guint</span></a>               g_strv_length                       (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> **str_array</code></em>);</pre>
<p>
Returns the length of the given <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated
string array <em class="parameter"><code>str_array</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>length of <em class="parameter"><code>str_array</code></em>.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.6</p>
</div>
<hr>
<div class="refsect2">
<a name="g-strerror"></a><h3>g_strerror ()</h3>
<pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *       g_strerror                          (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> errnum</code></em>);</pre>
<p>
Returns a string corresponding to the given error code, e.g.
"no such process". You should use this function in preference to
<code class="function">strerror()</code>, because it returns a string in UTF-8 encoding, and since
not all platforms support the <code class="function">strerror()</code> function.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>errnum</code></em> :</span></p></td>
<td>the system error number. See the standard C <code class="literal">errno</code>
documentation</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a UTF-8 string describing the error code. If the error code
is unknown, it returns "unknown error (&lt;code&gt;)".</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="g-strsignal"></a><h3>g_strsignal ()</h3>
<pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> *       g_strsignal                         (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> signum</code></em>);</pre>
<p>
Returns a string describing the given signal, e.g. "Segmentation fault".
You should use this function in preference to <code class="function">strsignal()</code>, because it
returns a string in UTF-8 encoding, and since not all platforms support
the <code class="function">strsignal()</code> function.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signum</code></em> :</span></p></td>
<td>the signal number. See the <code class="literal">signal</code>
documentation</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a UTF-8 string describing the signal. If the signal is unknown,
it returns "unknown signal (&lt;signum&gt;)".</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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